@misc{indiciae159c864c4406,
  title = {Overpopulation and subnormality.},
  author = {R D Haigh},
  year = {1972},
  doi = {10.1136/bmj.2.5807.235-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/5022747/},
  note = {Source identifier: 5022747}
}